火暴露铝结构中MIG焊接连接的强度

IF 1.7 3区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Advanced Steel Construction Pub Date : 2009-01-01 DOI:10.18057/ijasc.2009.5.2.4

J. Maljaars, F. Soetens

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引用次数: 5

摘要

铝合金结构对火暴露很敏感，这主要是由于其熔化温度低。然而，对于铝合金在火灾下的结构行为，还没有完整的认识。本文关注的是一个主要的知识空白，即铝焊接连接在火灾中的强度。对5083-H111、6060-T66和6082-T6合金焊接和未焊接铝试样进行了高温单轴拉伸试验。所有焊接样品在焊缝外失效。结果表明，热影响区与母材之间的强度差随着温度的升高而减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Strength of MIG welded connections in fire exposed aluminium structures

Aluminium alloy structures are sensitive to fire exposure, which is mainly due to the low melting temperature. Yet a complete knowledge of the structural behaviour of aluminium alloys when exposed to fire is not available. This paper focuses on one of the main knowledge gaps, being the strength of aluminium welded connections in fire. Uniaxial tensile tests were carried out at elevated temperatures on welded and unwelded aluminium samples of alloys 5083-H111, 6060-T66 and 6082-T6. All welded samples failed outside the weld itself. It is concluded that the difference in strength between the heat affected zone and the parent metal decreases with increasing temperature.

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来源期刊

Advanced Steel Construction CONSTRUCTION & BUILDING TECHNOLOGY-ENGINEERING, CIVIL

CiteScore

2.60

自引率

29.40%

发文量

审稿时长

6 months

期刊介绍： The International Journal of Advanced Steel Construction provides a platform for the publication and rapid dissemination of original and up-to-date research and technological developments in steel construction, design and analysis. Scope of research papers published in this journal includes but is not limited to theoretical and experimental research on elements, assemblages, systems, material, design philosophy and codification, standards, fabrication, projects of innovative nature and computer techniques. The journal is specifically tailored to channel the exchange of technological know-how between researchers and practitioners. Contributions from all aspects related to the recent developments of advanced steel construction are welcome.